Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAMNikon D3100
Top 6%2,294 points
Top 6%
Top 40%1,473 points
Top 40%
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
vs
Top specs and features

Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM vs Nikon D3100: 73 facts in comparison

1. megapixels

9.46% more megapixels.
16.2MP
Panono Camera: 108MP
14.8MP

2. sensor size

The larger the sensor the more light the sensor captures yielding in better image quality.
23.5 x 15.6mm
Polaroid Snap: 81.2 x 25.4mm
23.1 x 15.4mm

3. focus points

The more focus points the more flexibility in picking which part of the scene to focus on. They also give the image sensor a better probability in identifying the right area of the scene to focus on in more automatic modes.
15
Sony Alpha a9: 693
11

4. continuous shooting at high resolution

Fast continuous shooting is useful for catching action shots.
10fps
Olympus OM-D E-M1 Mark II: 60fps
3fps

5. has a flip-out screen

Flip-out screens are useful for doing tricky shots.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
27% have it

6. image quality

A device's overall image quality score considers: color depth, dynamic range and low light performance. Source: DxOMark.
73
Sony Alpha 7R II: 98
67

7. maximum light sensitivity

With a higher light sensitivity (ISO level), the sensor absorbs more light. This can be used to capture moving objects using a fast shutter speed, or to take images in low light without using a flash.
12800 ISO
Nikon D7500 + Nikon AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR: 1640000 ISO
12800 ISO

8. weight

37g lighter.
492g
HTC Re: 65.5g
455g

9. longer battery life

CIPA is an independent, standard measurement that determines how many shots a camera can take before the battery dies.
330shots
Nikon D3x: 4400shots
550shots

10. video recording

2.5x better video recording quality.
1080 x 60fps
Canon EOS 1D X Mark II: 2160 x 60fps
1080 x 24fps

11. Has WiFi

The device can connect to WiFi.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
37% have it

12. color depth

The better a device's color depth the more color nuances it can distinguish. Source: DxOMark.
23bits
HP Photosmart R927: 42bits
22.5bits

13. has a stereo microphone

A stereo microphone allows to record audio files or movies in stereo without an external microphone.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
49% have it

14. Faster video autofocus due to a phase detection autofocus when shooting movies

A phase detection autofocus is much faster than a contrast detection autofocus and allows sharper movies.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
11% have it

16. dynamic range

The better the dynamic range the system captures a wider number of values from dark to light leading to more details in low and highlights. Source: DxOMark.
12.4Evs
Nikon D810A: 14.8Evs
11.3Evs

17. has a built-in HDR mode

It can automatically shoot pictures with a higher dynamic range (HDR).
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
26% have it

18. has a 24p cinema mode

24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
26% have it

19. width

32.46mm narrower.
92mm
DxO One: 26.2mm
124.46mm

20. has a microphone in

A microphone port allows connecting external high-end or specialized microphones.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
25% have it

21. resolution

4x higher resolution.
1176 x 784px
Panasonic Lumix DC-GH5S: 3680 x 2760px
588 x 392px

22. higher resolution (screen)

A higher screen resolution provides a sharper image, making it easier to review your photos.
921k dots
Fujifilm FinePix X-Pro1: 1230000k dots
230k dots

23. Faster photo autofocus due to a phase detection autofocus when shooting pictures

A phase detection autofocus is much faster than a contrast detection autofocus and allows sharper images.
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
30% have it

24. volume

8.72% less body volume.
969.37cm³
Sony Cyber-shot DSC-TX66: 65.29cm³
880.1cm³

25. battery power

8% more battery power.
1080mAh
Samsung Galaxy NX Mirrorless + 18-55mm f/3.5-5.6: 4360mAh
1000mAh

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